Accessibility fixes:

- footer unordered list fix
- section headers added as list items instead of paragraphs

Author: jakecosgrove

docs/_includes/footer.html

@@ -9,9 +9,10 @@ <h2 class="nhsuk-u-visually-hidden">Support links</h2>
             <a class="nhsuk-footer__list-item-link" href="{{ item.link | uri_escape }}">{{ item.title }}</a>
           </li>
           {% endfor %}
-          <div>
-            <p class="nhsuk-footer__copyright">&copy; NHS England</p>
-          </div>
+        </ul>
+        <div>
+          <p class="nhsuk-footer__copyright">&copy; NHS England</p>
+        </div>
       </div>
     </div>
   </div>

docs/_layouts/page.html

@@ -29,7 +29,7 @@
               <ul class="nhsuk-list nhsnotify-side-nav__list">
                 {% for section in first_level %}
                 {% if section.name != "" %}
-                <p class="nhsuk-u-font-weight-bold nhsnotify-side-nav__list-section">{{ section.name }}</p>
+                <li class="nhsuk-u-font-weight-bold nhsnotify-side-nav__list-section">{{ section.name }}</li>
                 {% endif %}
                 {% assign sorted = section.items | sort: 'nav_order' %}
                 {% for post in sorted %}